---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-24-003765"
form_type: "8-K"
ticker: "ACMR"
cik: "0001680062"
company_name: "ACM Research, Inc."
filed_at: "2024-01-25T23:59:59+00:00"
generated_at: "2026-06-06T18:22:23.299902+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# ACM Research subsidiary ACM Shanghai proposes private offering of up to RMB 4.5B ($625M) in ordinary shares

## Summary
- Up to 43.6M ordinary shares (10% of share capital) offered by ACM Research (Shanghai).
- Gross proceeds of up to RMB 4.5B ($625M) for R&D, capex, and working capital.
- ACM's equity interest to decrease from 82.1% to approximately 74.6% if fully sold.
- Offering subject to shareholder approval, SSE review, and CSRC registration.

## SEC filing metadata
- accession: 0001140361-24-003765
- form_type: 8-K
- ticker: ACMR
- cik: 0001680062
- company_name: ACM Research, Inc.
- filed_at: 2024-01-25T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1680062/000114036124003765/0001140361-24-003765-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1680062/000114036124003765/ef20019682_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-24-003765
- JSON: https://secwatch.observer/filing/0001140361-24-003765.json
- Plain text: https://secwatch.observer/filing/0001140361-24-003765.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.